メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.812731028562 35.344146050964, 136.8127557016 35.3442040830568, 136.812887507866 35.3444906055344, 136.812907614132 35.3445314409732, 136.812371562813 35.3445845242813, 136.812265599498 35.3445722404724, 136.812145687835 35.3444220249063, 136.811853780132 35.3441469354523, 136.811607211226 35.3439605024815, 136.812422156097 35.3439424643446, 136.812637193998 35.3439331635902, 136.812731028562 35.344146050964)) ^^http://www.opengis.net/ont/geosparql#wktLiteral